| 摘要 |
PURPOSE:To evade the effect of a refracted wave and to maximize the buffle effect by descending one of left/right corners of a ceiling this side when viewing from a lengthwise direction, descending other corner of the left/right sides of the depth ceiling and providing a hill using straight lines tying the descended ceiling corners as ridge lines to the ceiling. CONSTITUTION:The buffle of a radio wave dark room is a buffle using straight lines tying the right part of the ceiling this side when viewing from the lengthwise direction of the radio wave dark room while descending it by 1-3m and the descended lines of the left of the depth ceiling by 1-3m as ridge lines and corresponds to a buffle while the lateral buffle is rotated by 45+ or -15 deg.. Thus, a reflected wave from the buffle is directed to the side wall of the radio wave dark room and is not made incident directly to a reception antenna, then the error in site attenuation is reduced and the effect of buffle is maximized by avoiding a refracted wave. |
